Strain Effects on Optical Properties of (In,Ga)As-Capped InAs Quantum Dots Grown by Molecular Beam Epitaxy on GaAs (113)A Substrate
Joint Authors
Bouzaïene, Lotfi
Bennour, Mouna
Saidi, Faouzi
Maaref, Hassen
Sfaxi, Larbi
Source
International Journal of Spectroscopy
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-31
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
We have investigated the optical properties of InAs/GaAs (113)A quantum dots grown by molecular beam epitaxy (MBE) capped by (In,Ga)As.
Reflection high-energy electron diffraction (RHEED) is used to investigate the formation process of InAs quantum dots (QDs).
A broadening of the PL emission due to size distribution of the dots, when InAs dots are capped by GaAs, was observed.
A separation between large and small quantum dots, when they are encapsulated by InGaAs, was shown due to hydrostatic and biaxial strain action on large and small dots grown under specifically growth conditions.
The PL polarization measurements have shown that the small dots require an elongated form, but the large dots present a quasi-isotropic behavior.
American Psychological Association (APA)
Saidi, Faouzi& Bennour, Mouna& Bouzaïene, Lotfi& Sfaxi, Larbi& Maaref, Hassen. 2011. Strain Effects on Optical Properties of (In,Ga)As-Capped InAs Quantum Dots Grown by Molecular Beam Epitaxy on GaAs (113)A Substrate. International Journal of Spectroscopy،Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-478824
Modern Language Association (MLA)
Saidi, Faouzi…[et al.]. Strain Effects on Optical Properties of (In,Ga)As-Capped InAs Quantum Dots Grown by Molecular Beam Epitaxy on GaAs (113)A Substrate. International Journal of Spectroscopy No. 2011 (2011), pp.1-5.
https://search.emarefa.net/detail/BIM-478824
American Medical Association (AMA)
Saidi, Faouzi& Bennour, Mouna& Bouzaïene, Lotfi& Sfaxi, Larbi& Maaref, Hassen. Strain Effects on Optical Properties of (In,Ga)As-Capped InAs Quantum Dots Grown by Molecular Beam Epitaxy on GaAs (113)A Substrate. International Journal of Spectroscopy. 2011. Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-478824
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-478824